Thermomechanical properties of polycarbonate under dynamic loading

被引：21

作者：

Lerch, V

Gary, G

Hervé, P

机构：

[1] Univ Paris 10, Lab Energet & Econ Energie, F-92410 Ville Avray, France

[2] Ecole Polytech, Mecan Solides Lab, F-91128 Palaiseau, France

来源：

JOURNAL DE PHYSIQUE IV | 2003年 / 110卷

关键词：

D O I：

10.1051/jp4:20030687

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the present study, dynamic compression tests have been per-formed on polycarbonate (PC) specimen for strain rates in the range of 500 to 2000s(-1) and on aluminum for a strain rate around 1300s(-1) using a Split Hopkinson Pressure Bar (SHPB). Temperature measurement has been carried out using a fast response infrared optical pyrometer which is able to measure the surface temperature rise of a specimen during the tests. The temperature data shows that the mechanical work is not completely converted into heat. It implies the existence of a stored energy within the material and possibly a subsequent delay for the conversion of mechanical work into heat.

引用

页码：159 / 164

页数：6

共 8 条

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[Anonymous], P ROY SOC A

[2]

DAVIES RM, 1948, PHILOS T R SOC LONDO, V240

[3]

HERVE P, 1989, TECHNIQUES INGENIE R, V2737, P1

[4] Partition of plastic work into heat and stored energy in metals [J].